1、
Adopt the knuckle joint assembly, use the electronic engine as the motive force.
采用铰接组合, 以电起动发动机作为动力.
互联网摘选
2、
Study on the influence of wrist joint and knuckle flexibility in shooting
腕、指关节的灵活性对投篮技术的影响的实验研究
互联网摘选
3、
